Though I cannot speak for any particular program, (player name removed by me) is correct in that model editing is not permitted. Though any change to a file you may want to make may be benign it is not something that we can make individual determinations on. Our systems would only look to see if a file was changed.

The license granted to you in Section 1 is subject to the limitations set forth in Sections 1 and 2 (collectively, the “License Limitations”). Any use of the Service or the Game Client in violation of the License Limitations will be regarded as an infringement of Blizzard’s copyrights in and to the Game. You agree that you will not, under any circumstances:

A. use cheats, automation software (bots), hacks, mods or any other unauthorized third-party software designed to modify the World of Warcraft experience;

The license granted to you in Section 1 is subject to the limitations set forth in Sections 1 and 2 (collectively, the “License Limitations”). Any use of the Service or the Game Client in violation of the License Limitations will be regarded as an infringement of Blizzard’s copyrights in and to the Game. You agree that you will not, under any circumstances:

A. use cheats, automation software (bots), hacks, mods or any other unauthorized third-party software designed to modify the World of Warcraft experience;

Quote from the ToS.

1.Basically addons are mods,which change your game experience,should they be bannable?2.Blizz had a program called Warden,which was scanning your computer and wow files to find hacks and cheats.Warden was partly disabled because it had issues with the law of privacy,now it only scans your wow files...if you use a program that is running outside the game,it will not be detected.